Open vSwitch switch implementations

Open vSwitch is a production quality, multilayer, software-based, Ethernet
virtual switch. It is designed to enable massive network automation through
programmatic extension, while still supporting standard management interfaces
and protocols (e.g. NetFlow, sFlow, SPAN, RSPAN, CLI, LACP, 802.1ag). In
addition, it is designed to support distribution across multiple physical
servers similar to VMware's vNetwork distributed vswitch or Cisco's Nexus
1000V.

openvswitch-switch provides the userspace components and utilities for
the Open vSwitch kernel-based switch.